CN105589227B - Detection method and light supply apparatus for liquid crystal display concave-convex surface point - Google Patents
Detection method and light supply apparatus for liquid crystal display concave-convex surface point Download PDFInfo
- Publication number
- CN105589227B CN105589227B CN201610087581.6A CN201610087581A CN105589227B CN 105589227 B CN105589227 B CN 105589227B CN 201610087581 A CN201610087581 A CN 201610087581A CN 105589227 B CN105589227 B CN 105589227B
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- fresnel lenses
- supply apparatus
- crystal display
- bar shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
Abstract
The embodiment of the invention discloses a kind of detection methods and light supply apparatus for liquid crystal display concave-convex surface point.The detection method includes that liquid crystal display to be detected is laid on monitor station；The collimated light beam oblique illumination for being 5 ° using field angle shows bar shaped irradiation area in liquid crystal screen surfaces to be detected in the surface of liquid crystal display to be detected；Scanning camera is set in the other side of bar shaped irradiation area, the camera lens of scanning camera and the light supply apparatus for issuing collimated light beam are critical symmetrical about the center line vertical plane of bar shaped irradiation area；The center line vertical plane of bar shaped irradiation area is parallel with the longitudinal direction of bar shaped irradiation area；Light supply apparatus is at the uniform velocity moved along liquid crystal display longitudinal direction to be detected, and the length of bar shaped irradiation area is much larger than the width of liquid crystal display to be detected；Scanning camera and light supply apparatus synchronizing moving simultaneously carry out Image Acquisition to the bar shaped irradiation area that light supply apparatus is irradiated to；If there are hazy regions in acquired image, it is determined that there are sags and crests for liquid crystal screen surfaces to be detected.
Description
Technical field
The present invention relates to liquid crystal display detection device technical fields, and in particular to one kind is used for liquid crystal display concave-convex surface point
The detection method of detection and light supply apparatus for the detection method.
Background technique
The structure of liquid crystal display generally includes liquid-crystalline glasses piece and two panels polaroid.For the liquid-crystalline glasses piece of laid-flat status,
A piece of polaroid is tightly attached to the upper surface of liquid-crystalline glasses, and another is tightly attached to the lower surface of liquid-crystalline glasses.In the production of liquid crystal display
In the process, during polaroid being fitted in liquid-crystalline glasses piece, since production technology or artificial origin will cause polaroid
Surface scratching or formation pit or salient point on the surface of polaroid.During the quality testing of liquid crystal display, need table
There is the liquid crystal display of scratch, pit or salient point pick picking in face.
In the detection of available liquid crystal screen surfaces, for liquid crystal screen surfaces with the presence or absence of the detection side of scratch, pit and salient point
Method is to be irradiated by surface of the light supply apparatus to liquid crystal display, while being carried out using surface of the image collecting device to liquid crystal display
Imaging, if the surface of collected liquid crystal display images there are hazy point or scratch, illustrates that there are the flaws for the liquid crystal screen surfaces
Defect.
But light supply apparatus used in available liquid crystal screen surfaces detection process is compact LED close-packed arrays in the way of matrix
The light supply apparatus of composition, this kind of light supply apparatus is due to including the multiple light emitting sources being arranged in a matrix, light supply apparatus sending light
The angle of line is different.When being irradiated using above-mentioned light supply apparatus to liquid crystal screen surfaces, difference that light supply apparatus is launched
The light in direction to scratch, salient point or the pit on liquid crystal screen surfaces can realize compensation illumination, cause salient point, pit or scratch with
Liquid crystal display normal surface can not be distinguished effectively, and detection accuracy is lower while wasting more luminous energy.
Summary of the invention
Goal of the invention of the invention is to provide a kind of detection method of liquid crystal display concave-convex surface point and is suitable for the detection
The light supply apparatus of method, the light supply apparatus can constrain the angle that light supply apparatus emits beam, and avoid in irradiating liquid crystal screen surfaces
When illumination is compensated to scratch, salient point or the pit on liquid crystal screen surfaces, can accurate detection go out the bumps in liquid crystal display
Point improves the detection accuracy of liquid crystal display concave-convex surface point detecting method.
According to an embodiment of the invention, providing a kind of detection method of liquid crystal display Surface testing sags and crests, comprising:
Liquid crystal display to be detected is laid on monitor station；
The collimated light beam oblique illumination for being 5 ° using field angle is in the surface of liquid crystal display to be detected, in the liquid crystal to be detected
Screen surfaces show bar shaped irradiation area；
In the other side of the bar shaped irradiation area, scanning camera, the camera lens and sending directional light of the scanning camera are set
The light supply apparatus of beam is critical symmetrical about the center line vertical plane of the bar shaped irradiation area；The center line of the bar shaped irradiation area
Vertical plane is parallel with the longitudinal direction of the bar shaped irradiation area；
The light supply apparatus is at the uniform velocity moved along the liquid crystal display length direction to be detected, the length of the bar shaped irradiation area
Much larger than the width of the liquid crystal display to be detected；
The scanning camera and the light supply apparatus synchronizing moving and the bar shaped irradiated region that the light supply apparatus is irradiated to
Domain carries out Image Acquisition；
If there are hazy regions in acquired image, it is determined that the liquid crystal screen surfaces to be detected exist concave-convex
Point.
Wherein, the collimated light beam and the liquid crystal display normal to a surface angle to be detected are greater than 0 degree and are less than or equal to 30 degree.
According to another aspect of the present invention, a kind of light supply apparatus for the detection of liquid crystal display concave-convex surface point is additionally provided,
Include:
Including the shell with first end and the second end, the central axes of first end and the central axes weight of the second end
It closes, first end is equipped with light-emitting window, is equipped with point light source on the inside of the second end；
First Fresnel Lenses, is set between first end and the second end, and the point light source is located at the first Fresnel
The focal point of lens, the flank of the first Fresnel Lenses is towards the light-emitting window, and the smooth surface of the first Fresnel Lenses is towards institute
State point light source；The field angle of the collimated light beam issued through the first Fresnel Lenses smooth surface is 5 °.
As another preferred solution, the second end of the shell is equipped with along same multiple groups point light source arranged in a straight line；Often
The first Fresnel Lenses is set between group point light source and the light-emitting window；
Multiple first Fresnel Lenses mutually splice, and the flank of multiple first Fresnel Lenses is generally aligned in the same plane, more
The smooth surface of a first Fresnel Lenses is generally aligned in the same plane；
Anti-dazzling screen is equipped between point light source described in multiple groups, the anti-dazzling screen is fixed on the inner surface of the housing second ends
On.
Preferably, the focal length of the first Fresnel Lenses is 70 millimeters, and the pitch of thread is 0.5 millimeter, with a thickness of 2 millimeters.
Further, the light supply apparatus further include:
Second Fresnel Lenses is set between the first Fresnel Lenses and the light-emitting window, the second Fresnel Lenses
Flank is towards the light-emitting window, and the smooth surface of the second Fresnel Lenses is towards the first Fresnel Lenses.
Further, the baffle for adjusting the second Fresnel Lenses is equipped in the first end of the shell.
Preferably, it is equipped with shield in the first end of the shell, the second Fresnel Lenses and the shield are along point
The direction of source light outgoing is set gradually.
Further, the outer end face of the first end of the shell is equipped with thermal component.
Wherein, the thermal component includes side radiator fan, top heat dissipation fan and cooling fin；
It further, further include diffuser plate between the point light source and the first Fresnel Lenses, the diffuser plate and
One Fresnel Lenses is arranged in parallel.
From the above technical scheme, in the application when detecting to liquid crystal screen surfaces, use field angle for 5 °
Collimated light beam oblique illumination makes the camera lens of scanning camera and issues the light source dress of collimated light beam in the surface of liquid crystal display to be detected
The center line vertical plane set about bar shaped irradiation area is critical symmetrical, under this kind of state, as long as scanning camera acquired image
Half bright half dark region of middle presentation, then capable of providing liquid crystal screen surfaces, there are the testing results of sags and crests.In the application, for examining
The light supply apparatus light source of survey uses dotted light-emitting particles, and it is made to emit the collimated light beam that field angle is less than or equal to 5 °, thus
Illumination will not be compensated to scratch, salient point or the pit on liquid crystal screen surfaces in irradiating liquid crystal screen surfaces, therefore can be accurate
The sags and crests detected in liquid crystal display, improve liquid crystal display concave-convex surface point detecting method detection accuracy.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 shows the detection method flow chart of liquid crystal display Surface testing sags and crests；
Fig. 2 shows sags and crests to be presented the image of half bright half dark areas in scanning camera；
Fig. 3 is that the light supply apparatus structural schematic diagram for liquid crystal display Surface testing exemplified is preferably implemented according to one.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In liquid crystal display Surface testing, illumination methods have a major impact detection effect.The light direction that light source issues is consistent
Property to liquid crystal display concave-convex surface imaging have very important meaning, if light source issue light can make the recessed of liquid crystal screen surfaces
Salient point shows half bright half dark feature in image collecting device, then is readily able to be identified by software.Traditional light source uses
LED solid matter mode can bring light-source angle diversified, compensate different directions light to sags and crests and illuminate, lead to sags and crests and liquid
Crystalline substance screen normal surface can not be distinguished effectively.Present inventor utilizes geometric optical theory, it was found that can make liquid crystal display table
The sags and crests in face show half bright half dark detection method in image collecting device and the light source suitable for the detection method fills
It sets.
According to an embodiment of the invention, providing the detection method of liquid crystal display Surface testing sags and crests.Fig. 1 shows liquid crystal
Screen surfaces detect the detection method flow chart of sags and crests, as shown in Figure 1, including the following steps:
S101: liquid crystal display to be detected is laid on monitor station.
S102: the collimated light beam oblique illumination for being 5 ° using field angle is in the surface of liquid crystal display to be detected, in liquid to be detected
Brilliant screen surfaces show bar shaped irradiation area.Preferably, collimated light beam and liquid crystal display normal to a surface angle to be detected are greater than 0 degree
Less than or equal to 30 degree.
S103: scanning camera, the camera lens and sending collimated light beam of scanning camera are set in the other side of bar shaped irradiation area
Light supply apparatus it is critical symmetrical about the center line vertical plane of bar shaped irradiation area；The center line vertical plane of bar shaped irradiation area and bar shaped
The longitudinal direction of irradiation area is parallel.The length of bar shaped irradiation area is much larger than the width of the liquid crystal display to be detected.
In this step, it should be noted that the camera lens and light supply apparatus of scanning camera are about in bar shaped irradiation area
The critical camera lens for symmetrically referring to scanning camera of heart line vertical plane and light supply apparatus are situated between about the center line vertical plane of bar shaped irradiation area
Between symmetric and unsymmetric.Only the camera lens of scanning camera and light supply apparatus about the center line vertical plane of bar shaped irradiation area at
In critical symmetry status, the field angle that light supply apparatus issues is that 5 ° of collimated light beam just can be such that the sags and crests of liquid crystal screen surfaces are sweeping
Retouch half bright half dark region of presentation in camera.Fig. 2 shows sags and crests to be presented the imaging of half bright half dark areas in scanning camera
Figure.
S104: light supply apparatus is at the uniform velocity moved along liquid crystal display length direction to be detected, the length of bar shaped irradiation area be greater than or
Equal to the width of liquid crystal display to be detected.
S105: scanning camera and light supply apparatus synchronizing moving simultaneously carry out figure to the bar shaped irradiation area that light supply apparatus is irradiated to
As acquisition.
S106: if there are hazy regions in acquired image, it is determined that liquid crystal screen surfaces to be detected exist concave-convex
Point.
According to another aspect of the present invention, additionally providing for that can emit field angle in above-mentioned detection method is 5 ° flat
The light supply apparatus of row light beam.Fig. 3 is that the light supply apparatus structure for liquid crystal display Surface testing exemplified is preferably implemented according to one
Schematic diagram.As shown in figure 3, light supply apparatus includes shell 1, point light source 2 and the first Fresnel Lenses 3.
Above-mentioned collimated light beam needs for point light source 2 to be placed in the focus of each Fresnel Lenses, and light-emitting surface is smaller more
It is good.In order to reach the final luminous power of light source, the point light source 2 in the application selects COB (chip On board) LED module to make
For point light source 2.Preferably, COB LED module uses Citizen 60W COB mould group, light-emitting surface diameter 12mm, with power
High and low thermal resistance, the coefficient of heat conduction are high, the feature higher than single LED particle brightness.
According to the needs in light source luminescent face in the present invention, the first Fresnel Lenses 3 uses the focal length to be for f70mm, the pitch of thread
0.5mm, the Fresnel Lenses with a thickness of 2mm.By selecting suitable operating distance, make to issue by the first Fresnel mirror surface
About 5 degree of collimated light beam of field angle.Fresnel Lenses has the characteristics that bore is big, thickness is thin, light-weight, easy processing, can
It completes the convergence effect that common convex lens is completed, and saves than common convex lens that space, therefore apply in light source production can be with
Make light source compact appearance, it is light-weight, facilitate installation.
In order to meet the needs of light-emitting surface, and overcome Fresnel Lenses itself the limitation in aperture of shining, it is preferable that this Shen
Please in light source include along same multiple groups point light source 2 arranged in a straight line, multiple groups point light source 2 is set to the second end 11.In order to
Each point light source 2 is corresponding, and the number of the first Fresnel Lenses 3 is multiple.Multiple first Fresnel Lenses 3 successively splice, wherein
The flank of multiple first Fresnel Lenses 3 is generally aligned in the same plane, and the smooth surface of multiple first Fresnel Lenses 3 is located at same flat
Face.Each point light source 2 is located at the focal point of the first corresponding Fresnel Lenses 3.
Preferably, the application is equipped with anti-dazzling screen 13 between multiple groups point light source, and anti-dazzling screen is fixed on 1 the second end 11 of shell
Inner surface on.Anti-dazzling screen 13 is used to be isolated the emergent ray of different COB LED, so that each first Fresnel Lenses 3 is only
Receive the light of the COB LED from center corresponding position, the interference of isolation side COB LED light.Anti-dazzling screen can pass through spiral shell
Bolt or other fixation members are fixed on the inner surface of 1 the second end 11 of shell.It is not done herein for the fixed form of anti-dazzling screen
It is specific to limit.
Preferably, the light supply apparatus in the application further includes the second Fresnel Lenses 4.Second Fresnel Lenses 4 is set to
Between first Fresnel Lenses 3 and light-emitting window, the flank of the second Fresnel Lenses 4 is towards light-emitting window, the second Fresnel Lenses 4
Smooth surface towards the first Fresnel Lenses 3.
Second Fresnel Lenses plays the role of secondary integration light beam, and limiting light source beam divergence in light supply apparatus,
So that light beam under the premise of directional, is imaged in the camera lens as much as possible into scanning camera.In the application, second is luxuriant and rich with fragrance
It is 600 millimeters of Fresnel Lenses that Nie Er lens, which select focal length,.
Further, the light supply apparatus in the application is equipped in the first end 10 of shell 1 for adjusting the second Fresnel
The baffle 5 of 4 center of lens.The center that the second Fresnel Lenses 4 is adjusted by adjusting baffle 5, enables to liquid crystal
The position that half bright half dark areas is imaged in screen surfaces sags and crests changes.
It is further preferred that the light supply apparatus in the application is equipped with shield 6 in the first end 10 of shell 1, second is luxuriant and rich with fragrance
Nie Er lens 4 are set gradually with shield 6 along the direction of 2 beam projecting of point light source.Shield 6 is used for being arranged inside shell 1
The first Fresnel Lenses 3, the optical devices such as the second Fresnel Lenses 4 are protected.
It is further preferable that the light supply apparatus in the application is equipped with thermal component in the outer end face of the first end 10 of shell 1.
Wherein, thermal component includes side radiator fan 7, top heat dissipation fan 8 and cooling fin 9.Thermal component be used for for point light source 2 into
Row heat dissipation, to guarantee the normal work of point light source 2, since the heat that point light source 2 issues can be shed in time in time, therefore can
Extend the service life of point light source 2.
Light supply apparatus in the application is additionally provided with diffuser plate 12 between point light source 2 and the first Fresnel Lenses 3, expands
It falls apart and 12 is arranged in parallel with the first Fresnel Lenses 3.Diffuser plate in the application uses the PC diffuser panel material of two-sided frosted, uses
In the light for being used as the COB LED module of point light source 2 to issue is converted to hot spot more evenly.The diffuser plate of PC material, which has, to be penetrated
Its diffusion effect that rate is high, frosting is is more preferable and heat-resisting, is unlikely to deform.
From the above technical scheme, in the application when detecting to liquid crystal screen surfaces, use field angle for 5 °
Collimated light beam oblique illumination makes the camera lens of scanning camera and issues the light source dress of collimated light beam in the surface of liquid crystal display to be detected
The center line vertical plane set about bar shaped irradiation area is critical symmetrical, under this kind of state, as long as half bright half is presented in scanning camera
Dark region, then capable of providing liquid crystal screen surfaces, there are the testing results of sags and crests.Light supply apparatus in the application, for detection
Light source uses point light source, and the collimated light beam for making it only emit 5 ° of field angle, thus in irradiating liquid crystal screen surfaces to liquid crystal
Scratch, salient point or pit on screen surfaces will not compensate illumination, thus can accurate detection go out the sags and crests in liquid crystal display,
Improve the detection accuracy of liquid crystal display concave-convex surface point detecting method.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows general principle of the invention and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the invention is not limited to the exact methods for being described above and being shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (8)
1. a kind of detection method for liquid crystal display concave-convex surface point characterized by comprising
Liquid crystal display to be detected is laid on monitor station；
The collimated light beam oblique illumination for being 5 ° using field angle is in the surface of liquid crystal display to be detected, in the liquid crystal display table to be detected
Face shows bar shaped irradiation area；
In the other side of the bar shaped irradiation area, scanning camera, camera lens and the sending collimated light beam of the scanning camera are set
Light supply apparatus is critical symmetrical about the center line vertical plane of the bar shaped irradiation area；The center line vertical plane of the bar shaped irradiation area
It is parallel with the longitudinal direction of the bar shaped irradiation area；
The light supply apparatus is at the uniform velocity moved along the liquid crystal display length direction to be detected, and the length of the bar shaped irradiation area is long-range
In the width of the liquid crystal display to be detected；
The scanning camera and the light supply apparatus synchronizing moving and the bar shaped irradiation area that the light supply apparatus is irradiated into
Row Image Acquisition；
If there are hazy regions in acquired image, it is determined that there are sags and crests for the liquid crystal screen surfaces to be detected.
2. detection method according to claim 1, which is characterized in that the collimated light beam and the liquid crystal display table to be detected
The normal angle in face is greater than 0 degree and is less than or equal to 30 degree.
3. a kind of light supply apparatus for the detection of liquid crystal display concave-convex surface point characterized by comprising
Including the shell with first end and the second end, the central axes of first end are overlapped with the central axes of the second end,
First end is equipped with light-emitting window, is equipped with point light source on the inside of the second end；
First Fresnel Lenses, is set between first end and the second end, and the point light source is located at the first Fresnel Lenses
Focal point, the flank of the first Fresnel Lenses is towards the light-emitting window, and the smooth surface of the first Fresnel Lenses is towards the point
Light source；The field angle of the collimated light beam issued through the first Fresnel Lenses smooth surface is 5 °；Further include:
Second Fresnel Lenses is set between the first Fresnel Lenses and the light-emitting window, the screw thread of the second Fresnel Lenses
Facing towards the light-emitting window, smooth surface the first Fresnel Lenses of direction of the second Fresnel Lenses；
The second end of the shell is equipped with along same multiple groups point light source arranged in a straight line；Every group of point light source and the light-emitting window it
Between the first Fresnel Lenses is set；
Multiple first Fresnel Lenses mutually splice, and the flank of multiple first Fresnel Lenses is generally aligned in the same plane, Duo Ge
The smooth surface of one Fresnel Lenses is generally aligned in the same plane；
Anti-dazzling screen is equipped between point light source described in multiple groups, the anti-dazzling screen is fixed on the inner surface of the housing second ends.
4. light supply apparatus according to claim 3, which is characterized in that the focal length of the first Fresnel Lenses is 70 millimeters, spiral shell
Line is away from being 0.5 millimeter, with a thickness of 2 millimeters.
5. light supply apparatus according to claim 4, which is characterized in that be equipped in the first end of the shell for adjusting
The baffle of second Fresnel Lenses.
6. light supply apparatus according to claim 5, which is characterized in that it is equipped with shield in the first end of the shell,
Second Fresnel Lenses is set gradually with the shield along the direction that point-source light ray is emitted.
7. light supply apparatus according to claim 3, which is characterized in that the outer end face of the first end of the shell, which is equipped with, to be dissipated
Thermal part；
The thermal component includes side radiator fan, top heat dissipation fan and cooling fin.
8. light supply apparatus according to claim 3, which is characterized in that between the point light source and the first Fresnel Lenses
It further include diffuser plate, the diffuser plate is arranged in parallel with the first Fresnel Lenses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610087581.6A CN105589227B (en) | 2016-02-16 | 2016-02-16 | Detection method and light supply apparatus for liquid crystal display concave-convex surface point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610087581.6A CN105589227B (en) | 2016-02-16 | 2016-02-16 | Detection method and light supply apparatus for liquid crystal display concave-convex surface point |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105589227A CN105589227A (en) | 2016-05-18 |
| CN105589227B true CN105589227B (en) | 2019-10-15 |
Family
ID=55928922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610087581.6A Active CN105589227B (en) | 2016-02-16 | 2016-02-16 | Detection method and light supply apparatus for liquid crystal display concave-convex surface point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105589227B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644989B (en) * | 2017-01-26 | 2023-08-01 | 夏明亮 | Absorbance detection system |
| CN111156932B (en) * | 2020-03-10 | 2021-08-27 | 凌云光技术股份有限公司 | Mirror surface material roughness detection device |
| CN111307824B (en) * | 2020-04-08 | 2023-03-21 | 山东交通学院 | Pit defect detection device on surface of wooden board |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202177007U (en) * | 2011-02-22 | 2012-03-28 | 涿州迅利达创新科技发展有限公司 | Electrodeless signal lamp for train |
| CN202302903U (en) * | 2011-10-27 | 2012-07-04 | 东莞市奥普特自动化科技有限公司 | Parallel lighting device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100697559B1 (en) * | 2004-08-31 | 2007-03-21 | 주식회사 에이디피엔지니어링 | Apparatus for testing substrate |
| KR100890647B1 (en) * | 2008-06-27 | 2009-03-27 | 와이즈플래닛(주) | Particle inspection device using cylindrical lens array and rod lens |
-
2016
- 2016-02-16 CN CN201610087581.6A patent/CN105589227B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202177007U (en) * | 2011-02-22 | 2012-03-28 | 涿州迅利达创新科技发展有限公司 | Electrodeless signal lamp for train |
| CN202302903U (en) * | 2011-10-27 | 2012-07-04 | 东莞市奥普特自动化科技有限公司 | Parallel lighting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105589227A (en) | 2016-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9632035B2 (en) | Light emitting diode linear light with uniform far field | |
| CN105589227B (en) | Detection method and light supply apparatus for liquid crystal display concave-convex surface point | |
| TW201017060A (en) | Machine vision inspection system and light source module thereof | |
| TW200817722A (en) | Optical element, light concentrating assembly, illumination unit and assembly, system for optical inspection of an object, and method for producing an optical element | |
| CN106501267A (en) | Linear light source device and system for surface defects detection | |
| CN101290090A (en) | Checking system light source stray illumination device | |
| CN209265169U (en) | A kind of multi-angle camera-shooting device | |
| CN101956912A (en) | Linear CCD light source for automatic optical inspection equipment | |
| US9204846B2 (en) | LED lamp and an X-ray device and a collimator comprising the LED lamp | |
| CN113219765B (en) | Optical imaging system | |
| CN207866734U (en) | Matrix form vision detection system for transparent material defects detection | |
| CN202125883U (en) | Lighting device for double converging lens and imaging objective lens | |
| CN107702889A (en) | Linear light concentrator and optical detection apparatus | |
| CN102865514B (en) | Surface defect detection line light source | |
| CN105927867A (en) | Light path heat dissipating combination system for spotlight | |
| CN216017031U (en) | Light source and camera module stray light detection system | |
| CN104977780A (en) | Illumination apparatus | |
| CN202769471U (en) | Surface defect detection line light source | |
| CN103472659A (en) | Zoom-type laser infrared lamp | |
| CN102798030A (en) | Short-distance linear light source device based on linear array scanning camera | |
| CN208041755U (en) | The concentration structure and light-source system of linear light source | |
| CN104390174B (en) | Light supply apparatus and the TFT LCD detecting system using the device | |
| CN202675027U (en) | A long-distance linear light source device based on a linear array scanning camera | |
| CN202546469U (en) | Optical illumination device for hyperspectral imaging and optical illumination system | |
| CN205938756U (en) | A optical system for having more a colored LED lamp pearl formation of image lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100094 Beijing city Haidian District Cui Hunan loop 13 Hospital No. 7 Building 7 room 701 Patentee after: Lingyunguang Technology Co., Ltd Address before: 100094 Beijing city Haidian District road Tamatsu wisdom Valley Center Building 2 Patentee before: LUSTER LIGHTTECH GROUP Co.,Ltd. |
|
| CP03 | Change of name, title or address |